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Plastic Gear Rack
1. Permanently static dissipative 2. Dissipate static charges (5 kV) in less than 2 seconds 3.No metal or graphite powder used 4.Depending on the base polymer, thermal performance from 90 to 260°C (continuous use)
plastic gear rack
1. Permanently static dissipative
2. Dissipate static charges (5 kV) in less than 2 seconds
3.No metal or graphite powder used
4.Depending on the base polymer, thermal performance from 90 to 260°C (continuous use)
| Property | Item No. | Unit | POM-C | POM-H | POM-H+PTFE | |
| Mechanical Properties | 1 | Density | g/cm3 | 1.41 | 1.43 | 1.5 |
| 2 | Water absorption(23ºCin air) | % | 0.2 | 0.2 | 0.17 | |
| 3 | Tensile strength | MPa | 68 | 78 | 55 | |
| 4 | Tensile strain at break | % | 35 | 35 | 10 | |
| 5 | Compressive stress(at 2%nominal strain) | MPa | 35 | 40 | 37 | |
| 6 | Charpy impact strength (unnotched) | KJ/m 2 | ≥150 | ≥200 | ≥30 | |
| 7 | Charpy impact strength (notched) | KJ/m 2 | 7 | 10 | 3 | |
| 8 | Tensile modulus of elasticity | MPa | 3100 | 3600 | 3200 | |
| 9 | Ball indentation hardness | N/mm 2 | 140 | 160 | 140 | |
| 10 | Rockwell hardness | - | M84 | M88 | M84 | |
Plastic Gears and Gear Racks—14 1/2° Pressure Angle
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